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Species / Orthaulax

Orthaulax

Stromboidea

Original Description of Orthaulax by Gabb, 1873 cited from Cooke, 1922:

  • "Shell rounded-fusiform, canal moderate, straight and regularly tapering; adult shell enveloped over the whole spire by the extension of the inner lip; posterior canal fissure-like, formed by the continued edge of the outer lip and running directly to the apex. Outer lip apparently sharp and simple; anterior notch oblique and broad."

Type species of Orthaulax is Orthaulax inornatus Gabb, 1873

Orthaulax species are

Further Orthaulax species might be

History and Synonymy

1887

Wagneria Heilprin, 1887

1912

Original Description of the genus Rostellaria (Veatchia) by Maury, 1912, p. 90:

  • "A single fragment of a shell was found at Soldado Rock, Bed No. 2, which in general form resembles the subgenus Orthaulax Gabb. It differs, however, from the latter in a very curious characteristic which marks it as altogether sui generis. This differentiating character is the curving into loops of the posterior canal, which is adherent to the upper portion of the body whorl. In this respect the shell approaches the subgenus Calyptraphorus Conrad, in which the posterior canal makes one semicircular curve over the dorsal side of the body whorl. Thus the subgenus Veatchia lies in an intermediate position between the subgenera Orthaulax and Calyptraphorus.
  • Type species: Rostellaria (Veatchia) carolinae Maury, 1912
  • Etymology: "The writer dedicates this new subgenus to Mr. Arthur C. Veatch, of Washington, D.C., in pleasant memory of our geological work in Venezuela."

2007

Bandel, 2007 places Orthaulax into the family Thersiteidae

References

Orthaulax, Strombidae
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